About RAS

What is RAS?

Relative Athletic Score (RAS) is a composite 0–10 score that measures how athletically exceptional an NFL Draft prospect is relative to all players at their position in NFL Draft history (back to 1987). A score of 10.00 means the player tested better than every prospect at their position up to that draft year. A score of 5.00 is perfectly average.

RAS was created by Kent Lee Platte (@MathBomb) as an objective way to assess athletic testing without positional bias. A 4.55 forty is elite for a defensive end but merely average for a wide receiver — RAS accounts for that.

How is it calculated?

Each of the 10 measurables is scored on a 0–10 percentile scale against all players at the same position through the prospect's draft year:

A minimum of 6 out of 10 measurables is required for a score to be generated. There is no requirement for any specific metric to be completed.

Size is scored where “bigger is better” as these scores are used to statistically weight the final RAS for size, not to identify an ideal.

Speed metrics are lower-is-better (a faster forty scores higher). Size and power metrics are higher-is-better.

The sum of a player's averages ÷ number of completed tests gives a raw average, which is then scored percentile-style against every player at that position up until a player's draft year to produce the final RAS.

Score tiers

Tools